PHILADELPHIA (AP) – Sevyn Streeter performed the national anthem wearing a “We Matter” jersey before the Philadelphia 76ers’ game against the Los Angeles Lakers on Friday night. 76ers bring Sevyn Streeter back to sing the anthem in her “We Matter” jersey pic.twitter.com/vVqFguMdW1 — CJ Fogler (@cjzero) December 17, 2016 The R&B artist had been scheduled…